WO2004064445A2 - Ported loudspeaker system and method with reduced air turbulence, bipolar radiation pattern and novel appearance - Google Patents

Ported loudspeaker system and method with reduced air turbulence, bipolar radiation pattern and novel appearance Download PDF

Info

Publication number
WO2004064445A2
WO2004064445A2 PCT/US2004/000080 US2004000080W WO2004064445A2 WO 2004064445 A2 WO2004064445 A2 WO 2004064445A2 US 2004000080 W US2004000080 W US 2004000080W WO 2004064445 A2 WO2004064445 A2 WO 2004064445A2
Authority
WO
WIPO (PCT)
Prior art keywords
port
loudspeaker system
wall
enclosure
interior
Prior art date
Application number
PCT/US2004/000080
Other languages
English (en)
French (fr)
Other versions
WO2004064445A3 (en
Inventor
Matthew S. Polk, Jr.
Original Assignee
Britannia Investment Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Britannia Investment Corporation filed Critical Britannia Investment Corporation
Priority to EP04700551A priority Critical patent/EP1582088A4/en
Priority to CA2512576A priority patent/CA2512576C/en
Publication of WO2004064445A2 publication Critical patent/WO2004064445A2/en
Publication of WO2004064445A3 publication Critical patent/WO2004064445A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H04R1/2823—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material
    • H04R1/2826—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H04R1/2819—Enclosures comprising vibrating or resonating arrangements of the bass reflex type for loudspeaker transducers

Definitions

  • the method disclosed in the '573 patent utilizes disc 43 and flow director 45 to create an increasing cross-sectional area at the inside end of single port tube 42.
  • the present invention uses a pair of flanges 416 and 418 at the ends of two opposed port tubes 404 and 408 to create an increasing cross-sectional area at the inside end of the port structure.
  • the larger radiating area of the combined front and rear port openings 406 and 410, and the larger combined cross-sectional area of the two port tubes has advantages in further reducing turbulence and loss at the outer ends and gives this port structure a unique bipolar radiation pattern.

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
PCT/US2004/000080 2003-01-07 2004-01-07 Ported loudspeaker system and method with reduced air turbulence, bipolar radiation pattern and novel appearance WO2004064445A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04700551A EP1582088A4 (en) 2003-01-07 2004-01-07 BASS REFLEX SPEAKER SYSTEM AND METHOD WITH REDUCED AIR BUBBLE, BIPOLAR RADIATION PATTERN, AND NEW APPEARANCE
CA2512576A CA2512576C (en) 2003-01-07 2004-01-07 Ported loudspeaker system and method with reduced air turbulence, bipolar radiation pattern and novel appearance

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/337,347 US7162049B2 (en) 2003-01-07 2003-01-07 Ported loudspeaker system and method with reduced air turbulence, bipolar radiation pattern and novel appearance
US10/337,347 2003-01-07

Publications (2)

Publication Number Publication Date
WO2004064445A2 true WO2004064445A2 (en) 2004-07-29
WO2004064445A3 WO2004064445A3 (en) 2005-01-27

Family

ID=32681226

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/000080 WO2004064445A2 (en) 2003-01-07 2004-01-07 Ported loudspeaker system and method with reduced air turbulence, bipolar radiation pattern and novel appearance

Country Status (5)

Country Link
US (1) US7162049B2 (ru)
EP (1) EP1582088A4 (ru)
CA (1) CA2512576C (ru)
RU (1) RU2356181C2 (ru)
WO (1) WO2004064445A2 (ru)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7019770B1 (en) * 1993-03-12 2006-03-28 Telebuyer, Llc Videophone system for scrutiny monitoring with computer control
WO2004034733A1 (en) * 2002-10-10 2004-04-22 Nokia Corporation A sound generating apparatus, a mobile electric device and a system for generating sound
US20070092096A1 (en) * 2003-07-21 2007-04-26 Roman Litovsky Passive acoustical radiating
US7133533B2 (en) 2003-07-21 2006-11-07 Bose Corporation Passive acoustic radiating
US7450733B2 (en) * 2004-01-23 2008-11-11 Creative Technology Ltd. Speaker with externally mounted acoustic extension
WO2006023728A2 (en) * 2004-08-16 2006-03-02 Harman International Industries, Incorporated Method for predicting loudspeaker port performance and optimizing loudspeaker port designs utilizing bi-directional fluid flow principles
WO2008033579A2 (en) * 2006-09-12 2008-03-20 Portable Sound Laboratories, Inc. Speaker system for portable multimedia player
US8391528B2 (en) * 2008-07-22 2013-03-05 Freedman Electronics Pty Ltd Loudspeaker slotted duct port
US8290179B2 (en) * 2008-08-21 2012-10-16 Apple Inc. Multiple-use acoustic port
US8199953B2 (en) * 2008-10-30 2012-06-12 Avago Technologies Wireless Ip (Singapore) Pte. Ltd. Multi-aperture acoustic horn
US8042647B1 (en) * 2009-03-16 2011-10-25 Robert Layton, Jr. Speaker side air supply
US8781962B2 (en) * 2009-09-02 2014-07-15 Visa International Service Association System and method for providing alternate funding source for portable consumer device
US20110176701A1 (en) * 2010-01-16 2011-07-21 Collins William E Autoaugmented Speaker Port
US8290195B2 (en) 2010-03-31 2012-10-16 Bose Corporation Acoustic radiation pattern adjusting
US8459404B2 (en) * 2011-08-09 2013-06-11 Bose Corporation Loudspeaker
US8256566B1 (en) * 2011-08-19 2012-09-04 Rogersound Labs, LLC Speaker enclosure
US8995696B2 (en) 2012-08-31 2015-03-31 Bose Corporation Speaker
CN103024628B (zh) * 2013-01-06 2015-01-21 康东兴 机械分频式音箱
US20140224569A1 (en) * 2013-02-13 2014-08-14 Pellisari, LLC Reflex Tube for a Ported Speaker
JP5915572B2 (ja) * 2013-03-15 2016-05-11 ヤマハ株式会社 バスレフポートおよび管体
US9102283B2 (en) 2013-12-11 2015-08-11 Nissan North America, Inc. Audio speaker cabinet
US9060220B1 (en) 2013-12-11 2015-06-16 Nissan North America, Inc. Audio speaker cabinet
US11832060B2 (en) 2014-01-06 2023-11-28 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
US11974097B2 (en) 2014-01-06 2024-04-30 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
US11368800B2 (en) 2014-01-06 2022-06-21 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
US11950055B2 (en) * 2014-01-06 2024-04-02 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
US11805375B2 (en) 2014-01-06 2023-10-31 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
WO2015145774A1 (ja) * 2014-03-28 2015-10-01 パイオニア株式会社 スピーカシステム
US10631093B2 (en) * 2015-01-26 2020-04-21 Harman International Industries, Incorporated Vented loudspeaker system with duct for cooling of internal components
US9571935B2 (en) 2015-01-26 2017-02-14 Harman International Industries, Inc. Loudspeaker with ducts for transducer voice coil cooling
CN106303771B (zh) * 2015-05-28 2020-01-03 迪芬尼香港有限公司 全向倒相音箱结构
US10349166B2 (en) * 2015-05-28 2019-07-09 Joseph Yaacoub Sahyoun Passive acoustic radiator module
FR3050600B1 (fr) * 2016-04-25 2018-04-27 Peugeot Citroen Automobiles Sa Dispositif de diffusion de sons a radiateurs passifs et event bass-reflex.
JP6852399B2 (ja) 2016-12-28 2021-03-31 ヤマハ株式会社 スピーカ装置及びスピーカキャビネット
JP2019169886A (ja) * 2018-03-23 2019-10-03 ヤマハ株式会社 バスレフポートおよびバスレフ型スピーカ
US10917715B2 (en) * 2018-08-12 2021-02-09 Bose Corporation Acoustic transducer with split dipole vents
CN113906766A (zh) * 2019-04-23 2022-01-07 普罗之声有限责任公司 用于吸收扬声器声共振的扬声器系统、方法和装置
CN110139191B (zh) * 2019-06-04 2020-12-22 温州耀顺食品有限公司 选择式混响音箱
US20210027002A1 (en) * 2019-07-25 2021-01-28 Samsung Electronics Co., Ltd. Low noise port tube
JP2022143004A (ja) * 2021-03-17 2022-10-03 セイコーエプソン株式会社 スピーカー装置およびプロジェクター

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688864A (en) * 1970-04-16 1972-09-05 Talbot American Corp Infinite dynamic damping loudspeaker systems
US4284166A (en) * 1979-04-13 1981-08-18 Gale George A Port devices for bass-reflex speaker enclosures
US5714721A (en) * 1990-12-03 1998-02-03 Bose Corporation Porting
US5092424A (en) * 1990-12-03 1992-03-03 Bose Corporation Electroacoustical transducing with at least three cascaded subchambers
US5809154A (en) * 1994-01-04 1998-09-15 Britannia Investment Corporation Ported loudspeaker system and method
US5517573A (en) * 1994-01-04 1996-05-14 Polk Investment Corporation Ported loudspeaker system and method with reduced air turbulence
KR100220507B1 (ko) * 1995-07-28 1999-09-15 전주범 서브우퍼 스피커 시스템
US5920633A (en) * 1996-02-12 1999-07-06 Yang; Yi-Fu Thin-wall multi-concentric cylinder speaker enclosure with audio amplifier tunable to listening room
KR100198290B1 (ko) * 1996-11-27 1999-06-15 구자홍 돔스피커 시스템구조
US6321070B1 (en) * 1998-05-14 2001-11-20 Motorola, Inc. Portable electronic device with a speaker assembly
US6389146B1 (en) * 2000-02-17 2002-05-14 American Technology Corporation Acoustically asymmetric bandpass loudspeaker with multiple acoustic filters
US7103193B2 (en) * 2000-09-15 2006-09-05 American Technology Corporation Bandpass woofer enclosure with multiple acoustic fibers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of EP1582088A4 *

Also Published As

Publication number Publication date
US20040131219A1 (en) 2004-07-08
RU2356181C2 (ru) 2009-05-20
RU2005123988A (ru) 2006-01-20
WO2004064445A3 (en) 2005-01-27
CA2512576C (en) 2013-09-03
EP1582088A2 (en) 2005-10-05
US7162049B2 (en) 2007-01-09
CA2512576A1 (en) 2004-07-29
EP1582088A4 (en) 2008-01-09

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